Pdf ifilter OCR (Optical Character Recognition) 64 bit SharePoint

Folks,
We have 3 windows server 2008 (2 front end and 1 index) 64 bit MOSS servers and 1 SQL Server 2008 64 bit server in our SharePoint environment.
We also have pdf iFilter 64 bit version from Adobe and we can successfully search PDF content. http://www.adobe.com/support/downloads/detail.jsp?ftpID=4025
However, scanned / OCR ed PDF content are not returned while indexing using the pdf iFilter 9 (64 bit). Then I followed http://blogs.msdn.com/ifilter/archive/2007/03/29/indexing-pdf-documents-with-adobe-reader-v-8-and-moss-2007.aspx except with Adobe Reader 9, which indexes PDF files that are OCR ed.
Also, this appears to be 32 bit version of reader and I couldn't find 64 bit version of Adobe reader, however it works great. I can successfully search scanned pdf content from MOSS search interface. J
My question is
1. What is the different between 2 iFilters
2. Am I doing some thing that might significantly affect index server performance?
3. Why OCR not working on 64 bit iFilter version from Adobe?
Any thoughts would be great
Thanks
Parthi

Parthi,
Since the crawler just uses the registered iFilter for returning text, you should ask Adobe why there is a difference.
MMatthew McDermott, MVP MOSS

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I have attached my project description and also the .vi file of my work towards it.
Attachments:
Project phase I.vi ‏138 KB
WP_20140814_17_27_38_Pro.jpg ‏1444 KB

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So, I opened a Customer Support case with Adobe.
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Hi Steve,
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https://dotnettim.wordpress.com/2010/12/02/sql-server-full-text-indexing-using-adobe-pdf-i filter-9-sql-server-2008-r2-64bit/
https://social.msdn.microsoft.com/Forums/sqlserver/en-US/69535dbc-c7ef-402d-a347-d3d3e4860 d72/sql-server-2008-64bit-fulltext-indexing-pdf-not-working-cant-find-ifilter?forum=sqldat abaseengine
Regards,
Rave

Pdf ifilter OCR (Optical Character Recognition) 64 bit SharePoint

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